变异性中占比例最大的设备误差是血压计袖套的大小。
The instrument error that contributes to the greatest variability is the cuff size of the sphygmomanometer.
结论在相同条件下，使用汞柱式血压计和带袖套式电子血压计不影响血压测量值，且带袖套式电子血压计便于家庭自测血压，有很好的应用前景。
Conclusion Under the same condition, mercury sphygmomanometer and electronic sphygmomanometer can replace each other. The electronic sphygmomanometer is suitable for family and has a bright future.
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